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【7】ADJUSTING THE NEEDLE GUARD
When the looper moves to the right from the extreme left
end of its travel, the looper passes behind the needle.
When the point of the looper has reached the centerline of
the needle, the needle should be 0 ~ 0.5mm deflected by
needle guard M. Adjustment is made by loosening screw
N.
The needle guard should be installed as low as
possible. In addition, the needle must touch the needle
guard surface until the point of the looper passing behind
the needle reaches the right side of the needle.
Adjustment is made by loosening screw O.
< Note >
Since the needle guard is installed on the feed dog bracket,
the relationship between the needle and the needle guard
varies according to the stitch length. Therefore readjust the
needle guard if the stitch length is changed.
【8】ADJUSTING THE FEED DOGS & STITCH LENGTH
8 8 8 8 - - - - 1 1 1 1 Feed dog height
Feed dog height
Feed dog height
Feed dog height
1.
The top of the screw B should be 2.7mm above the top
of feed dog bracket A, and setting the feed dog.
2.
Install those parts on the feed bar C with screw D and
E.
3.
When the main feed dog is in its highest position, the
first tooth from the front should be 2mm above the
needle plate. Then tighten screw D and E.
4.
Stopper pin F is touched under the feed dog and
tighten screw G.
8 8 8 8 - - - - 2 2 2 2 Feed dog front
Feed dog front- - - - to to to to- - - - back
Feed dog front
Feed dog front
The feed dog should be centered front to back.
The feed dog should not touch the needle plate.
Fine adjustment is made by tightening screw C, D and
turning front to back adjusting eccentric pin A.
back
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13
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